Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At1g26355	Acts redundantly with SPR1 in maintaining the cortical microtubules organization essential for anisotropic cell growth.	No verified direct reference in this release
Arabidopsis	At1g69230	Acts redundantly with SPR1 in maintaining the cortical microtubules organization essential for anisotropic cell growth.	No verified direct reference in this release
Arabidopsis	At2g03680	Required for directional control of cell elongation.	The SPIRAL genes are required for directional control of cell elongation in Aarabidopsis thaliana.; 2000; DOI: 10.1242/dev.127.20.4443; PMID: 11003843; https://pubmed.ncbi.nlm.nih.gov/11003843/ | SPIRAL1 encodes a plant-specific microtubule-localized protein required for directional control of rapidly expanding Arabidopsis cells.; 2004; DOI: 10.1105/tpc.017830; PMID: 15084720; https://pubmed.ncbi.nlm.nih.gov/15084720/ | The Arabidopsis sku6/spiral1 gene encodes a plus end-localized microtubule-interacting protein involved in directional cell expansion.; 2004; DOI: 10.1105/tpc.020644; PMID: 15155883; https://pubmed.ncbi.nlm.nih.gov/15155883/ | Role of the SPIRAL1 gene family in anisotropic growth of Arabidopsis thaliana.; 2006; DOI: 10.1093/pcp/pcj020; PMID: 16478750; https://pubmed.ncbi.nlm.nih.gov/16478750/ | Salt stress-induced disassembly of Arabidopsis cortical microtubule arrays involves 26S proteasome-dependent degradation of SPIRAL1.; 2011; DOI: 10.1105/tpc.111.089920; PMID: 21954463; https://pubmed.ncbi.nlm.nih.gov/21954463/
Arabidopsis	At5g15600	Acts redundantly with SPR1 in maintaining the cortical microtubules organization essential for anisotropic cell growth.	No verified direct reference in this release
Rice	Os03g0417800	Acts in maintaining the cortical microtubules organization essential for anisotropic cell growth.	No verified direct reference in this release